VIBRATIONAL BEHAVIOR OF CRACKED JEFFCOTT ROTORS
Hassan, S., Abouzaid, M. (1986). VIBRATIONAL BEHAVIOR OF CRACKED JEFFCOTT ROTORS. EKB Journal Management System, 2(2nd Conference on Applied Mechanical Engineering.), 163-172. doi: 10.21608/amme.1986.56809
S. D. Hassan; M. A. Abouzaid. "VIBRATIONAL BEHAVIOR OF CRACKED JEFFCOTT ROTORS". EKB Journal Management System, 2, 2nd Conference on Applied Mechanical Engineering., 1986, 163-172. doi: 10.21608/amme.1986.56809
Hassan, S., Abouzaid, M. (1986). 'VIBRATIONAL BEHAVIOR OF CRACKED JEFFCOTT ROTORS', EKB Journal Management System, 2(2nd Conference on Applied Mechanical Engineering.), pp. 163-172. doi: 10.21608/amme.1986.56809
Hassan, S., Abouzaid, M. VIBRATIONAL BEHAVIOR OF CRACKED JEFFCOTT ROTORS. EKB Journal Management System, 1986; 2(2nd Conference on Applied Mechanical Engineering.): 163-172. doi: 10.21608/amme.1986.56809

VIBRATIONAL BEHAVIOR OF CRACKED JEFFCOTT ROTORS

The International Conference on Applied Mechanics and Mechanical Engineering
Article 7, Volume 2, 2nd Conference on Applied Mechanical Engineering., May 1986, Page 163-172  XML PDF (2.04 MB)
Document Type: Original Article
DOI: 10.21608/amme.1986.56809
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Authors
S. D. Hassan1; M. A. Abouzaid2
1Cairo University, Faculty of Engineering.
2Kuwait Institute of Technology.
Abstract
A simplified mathematical model has been developed based on Jeffcott rotor to investigate the dynamic behavior of cracked  shaft. Analysis has indicated the existance of unstable zones of operation at the vicinity of which rotor response is largely magnified. In general rotor response due to unbalance forces contain vibrations at 1/rev and 2/rev components while gravity excited vibration is characterized by 3/rev harmonics as well. The measured response curve of the rotor shows an increased shaft deflection at all speeds. Also a subcritical peak is detected. Comparing the analytical results with experimental measurements indicates that the mathematical model is very realistic.
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